FWB wrote:
Yeah looks different but wonder how it'll play. If adding paint not only revealed but changed the environment - i.e. if you can't see it, you can bypass it - it could lead to something interesting.

Can't really do that though, it just won't work without incredibly complex level design. What's to stop you turning 25 degrees left and walking straight to the exit?

What if you can't see the exit because it's around a corner and what if the corner isn't visible until you paint it? What if the exit isn't visible until you paint it? Or perhaps the door doesn't open until you've activated something else in the level?